Concrete construction.



J. E. OONZELMAN.

CONCRETE CONSTRUGTION. APPLICATION FILED APR.29, 1909.

961,210, Patented June 14,1910

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J. E. UONZELMAN.

CONCRETE CONSTRUCTION.

APPLICATION FILED APR. 29, 1909.

Patented June 14, 1910.

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ANDREW B. QRANAM cm PNOTu-u1 maRAPnER$.wAsH|NGToN, 0' c UNITED STATES PATENT OFFICE.

JOHN E. CONZELMAN, OF ST. LOUIS, MISSOURI, ASSIGNOR, BY MESNE ASSIGNMENTS, TO UNIT CONSTRUCTION COMPANY, A CORPORATION OF DELAWARE.

CONCRETE CONSTRUCTION.

Original application filed January 9, 1909, Serial No. 471,431.

To all whom it may concern:

Be it known that I, JOHN E. OONZELMAN, a citizen of the United States, residing at the city of St. Louis, State of Missouri, have invented certain new and useful Improvements in Concrete Construction, of which the following is a specification, reference being had therein to the accompanying drawmgs.

This invention relates to concrete building structures and has particular reference to a construction in which concrete slabs are used for ceilings and floors, and are supported at their corners or intermediate edges by uprights or columns.

In the construction of concrete buildings, it is essential that proper unions be effected between the columns or uprights and the horizontal members or floor and ceiling slabs.

It is the object of this invention to provide a structure of concrete building elements which cooperate and are interengaged to form a rigid, secure and lasting jointure of said elements.

It is also an object to provide a concrete building structure in which the general construction of the cooperating upright and horizontal elements is generally improved to present a neat appearance as well as to prove of strong and durable nature.

This application is a divisional application of my copending application Serial Number 471,431, filed J an. 9, 1909.

In the accompanying drawings, which form part of this specification and in which like numerals denote similar parts throughout, Figure 1 is a vertical sectional view of my improved construction, and Fig. 2 is a top plan thereof.

Referring more particularly to said drawings, 5 represents a column or upright rising from the foundation or lower floor (not shown) of a building structure, and having resting on its upper end a similar column 2. The upper portion of said column 5 is enlar ed to form a surrounding cap 4 and shoulder 8, thereby providing a stud 3.

6 are slabs of concrete forming the floor member or ceiling members as the case may be, and comprise molded panels having the reinforcing rods 9 sunk in the body thereof and lying below the top and bottom surfaces Specification of Letters Patent.

Patented June 14, 1910.

Divided and this application filed April 29,

Serial No. 492,860.

thereof. A depending flange 7 is formed around the edges of the slabs, said flange 7 being adapted to rest upon the shoulder 8 formed by the cap A. When the flanges 7 are thus located upon the shoulder 8, the upper part of the slabs 6 extends above said stud 3 to form a recess, said recess providing a seat or socket to receive the lower portion 1 of the superposed column 2. The reinforcing bars 9 are embedded in the upper part of slab 6 and elsewhere, but particularly extend, at least in part, above the line where said stud 3 meets the lower portion 1 of column 2.

Having thus described my invention, what I claim and desire to secure by Letters Patent of the United States is 1. A concrete construction comprising, in combination, a column having an enlarged portion formed below its top to provide a surrounding cap and shoulder, an upwardly projected stud, a column conforming to said stud and superposed thereabove, slabs having the corners resting on said shoulder and abutting said stud and being spaced apart to provide spaces which radiate from said columns, and beams molded in said spaces.

2. A concrete construction, comprising, in combination, a column having an enlarged portion formed below its top to provide a surrounding cap and shoulder, an upwardly projected stud, a column conforming to said stud and superposed thereabove, slabs having corners supported on said shoulder and having their sides spaced apart in parallel relation to form spaces radiating from said columns, and beams molded in said spaces to rest with an end on said shoulder.

3. A concrete construction, comprising, in combination, a column having an enlarged portion formed below its top to provide a surrounding cap and shoulder, an upwardly projected stud, a column conforming to said stud and superposed thereabove, rectangular slabs each having a corner resting on said shoulder, and being spaced from one another to form recesses between their sides, and beams molded in said recesses to form .a monolithic structure with said slabs and to have an end resting on said shoulder.

4. A concrete construction, comprising, in combination, a column having an enlarged portion formed below its top to provide a surrounding cap and shoulder, an upwardly umns, and beams molded between said slabs projected stud, a column conforming to said in said recesses. 10 stud and superposed thereabove, rectangular In testimony whereof I have aflixed my slabs each having a corner resting on said signature in presence of two witnesses.

shoulder and projecting above said stud to JOHN E. CONZELMAN. surround said superposed column, said slabs lVitnesses: being spaced apart to form recesses having GEO. Gr. ANDERSON,

parallel sides and radiating from said 001- GLADYs WALTON. 

